Mitutoyo 378-868-5 M Plan Apo NIR B 50X Objective, NA 0.42, WD 25.5mm

Mitutoyo M Plan Apo NIR B 50X infinity-corrected objective for brightfield observation – near-infrared corrected, long working distance. Mitutoyo 378 series objectives have the world's longest working distances, giving good clearance over awkward workpiece features. Mounting thread to JIS B-7141.

• Magnification: 50X
• Numerical aperture: 0.42
• Working distance: 25.5 mm
• Focal length: 4 mm
• Resolving power: 0.7 µm
• Depth of focus: 1.6 µm
• Field of view (FN 24 eyepiece): 0.48 mm
• Field of view (1/2" camera): 0.10 x 0.13 mm
• Observation: Brightfield
• Mass: 375 g

Made in Japan by Mitutoyo.